The Idaho Conservation League (Appellant) submitted a FOIA request to BPA seeking the Project file for the Albeni Falls Dam Flexible Winter Operations Environmental Assessment. In a Determination Letter, BPA issued a response to the Appellant’s FOIA request, releasing 17 documents in their entirety, releasing one partially redacted document, withholding two documents as non-responsive, withholding 25 documents in their entirety under Exemptions 5 and 6 and providing a list of the electronic file names of the 25 documents which were withheld in full.